The cells, make up the upper and lower layers of the leaf. Multiple choice question.

A)
phloem

B)
xylem

C)
epidermal

D)
dermal

epidermal! hope this helps u!

C) epidermal

Explanation:

The cells that make up the top and bottom layers of a leaf are flat, irregularly shaped cells called epidermal cells.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.